Semion Tsvigun
Semion Tsvigun served as a high-ranking official in the KGB, the Soviet Union's main security agency, during a time of significant political upheaval. As the first deputy chairman of the KGB, he was involved in various intelligence and security operations. His career ended in mystery, as he reportedly died under unclear circumstances, which contributed to the aura of intrigue surrounding Soviet leadership during and after the Cold War.
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Semion Tsvigun was the first deputy chairman of the KGB whose death remains shrouded in mystery.
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